- #1

- 327

- 1

need as much as help I could said. With that said, I was wondering if you had any specific tips on taking a physics exam? Like how to dissect a problem.

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- Thread starter tnutty
- Start date

- #1

- 327

- 1

need as much as help I could said. With that said, I was wondering if you had any specific tips on taking a physics exam? Like how to dissect a problem.

- #2

- 12,134

- 161

Just saw your post, so this is probably too late, but here's some general advice.

- Be familiar with all the equations you are being tested on, so that you can quickly figure out which equation or equations will apply to any particular problem. Corollary: know which equations do
*not*apply to a given problem.

Example: "A wire carrying a current of 2.0 A is at 90 degrees to a magnetic field of 5.0 T ..."

In this case, realize that equations dealing with current*I*and magnetic field*B*are relevant. Moreover, equations dealing with a charge*q*moving at velocity*v*are not relevant.

- Be able to draw a diagram to show what is going on pictorially. An example of this is using a free-body diagram to show the forces, including directions, acting on an object.

- Read the problem carefully, so that you are aware of all information that is being given you. Sometimes purely verbal information is actually conveying
*numerical*information. Example: "An electron ..." means "a charge with*q*=-1.60x10^{-19}C and mass*m*= 9.11x10^{-31}kg..."

- #3

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- 161

For future reference, more physics exam tips are being discussed here:

https://www.physicsforums.com/showthread.php?t=312989

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